介绍:
Alice Hello and welcome to 6 Minute English. I'm Alice…
Neil … and I'm Neil.
Alice So Neil, did you sleep well last night?
Neil Um, yes, thanks. Why do you ask?
Alice Today we're talking about how much sleep we need.
Neil I like a good eight hours myself – ten at the weekend. How about you?
Alice Six is enough for me. But did you know this? Humans sleep around three hours less than other primates like chimps, who sleep for about ten hours. So you're a chimp, Neil – at the weekends, at least! Are you ready for the quiz question?
Neil [makes some chimp noises]
Alice OK, I'll assume that means yes. Right. What's another word for sleepwalking? Is it… a) narcolepsy? b) restless legs syndrome? or c) somnambulism?
Neil I will go for b) restless legs syndrome, since there's a connection there with the legs.
Alice
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Well we'll find out whether you're right or wrong later on in the show. So what keeps you awake at night, Neil?
Neil Not much, to be honest. I usually sleep like a log – and that means very heavily indeed! But sometimes my own snoring wakes me up, and then I can find it hard to get back to sleep. Snoring, for those of you who don't know, means breathing in a noisy way through your mouth or nose while you're asleep. [snores] … like that… How about you, Alice?
Alice Very good, yes. Well, that's quite ridiculous! Anyway, for me, it's drinking too much coffee during the day. It's the caffeine in coffee – a chemical that makes you feel more awake – which can stop you from sleeping at night. But there are so many things that can keep us awake these days.
Neil Oh yes. Radio, TV… techy stuff like 24-hour internet, computers, smart phones. I love my phone and it's never far from me!
Alice Well, let's hear what Professor Jerome Siegel, from the University of California, found when he studied the sleep habits of three different hunter-gatherer communities who have very little contact with modern society. They don't have artificial light, electricity, batteries, or any of the gadgets that we rely on today.
INSERT Professor Jerome Siegel, from the University of California, US Their sleep was not that different from ours. The range of sleep period was about 6.9 to 8.5 hours. If you actually measure sleep in current populations in the United States or in Europe they're definitely at the low end of what's been reported. They certainly don't sleep a lot less than we do but they clearly don't sleep more.
Alice Professor Jerome Siegel found that people in these communities don't go to bed until several hours after sundown – just like us! But one big difference is that very few of them suffer from insomnia – which means having difficulty falling asleep and staying asleep.
Neil Now, I don't have a problem with insomnia. And hunter-gatherers – people who live by hunting animals and gathering plants to eat – don't either – probably because they take a lot of physical exercise during the day.
Alice Yes, that's right. Taking exercise is an important factor in sleeping soundly – or well – at night. But these days our minds can be so active that it becomes very difficult to fall asleep.
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Let's listen to Professor Kevin Morgan, from Loughborough University here in England, talking about how cognitive behavioural therapy can be used to help people with insomnia.
INSERT Professor Kevin Morgan, Loughborough University, England If you have a train of thoughts which would otherwise keep you awake one way of dealing with this is to block those thoughts. What I'd like you to do is repeat the word 'the' in your mind at irregular intervals – the the the the the the the the the – what you'll find (is) that the mind space required to do this blocks out almost everything else.
Neil So Professor Kevin Morgan suggests saying one word over and over again at irregular intervals – irregular in this context means not spaced out evenly. Doing it can help to block out the thoughts that are stopping you from getting to sleep. It sounds like a very simple solution. I wonder if it works?
Alice There's one way to find out, Neil. Try it yourself!
Neil I will.
Alice OK. And cognitive behavioural therapy by the way is a treatment for mental health problems that tries to change the way you think.
Neil Well, I usually count sheep if I can't get to sleep. Do you do that, Alice?
Alice No, not usually. No. OK, I think it's time for the answer to our quiz question. I asked: What's another word for sleepwalking? Is it… a) narcolepsy? b) restless legs syndrome? or c) somnambulism?
Neil And I said b) restless legs syndrome.
Alice Sorry, Neil, it's actually c) somnambulism – the roots of this word come from Latin. S omn us
means 'sleep' and and ambula r e means 'walk'. Narcolepsy is a condition where you can't stop yourself falling asleep, especially during the day.
Neil Narcolepsy…
Alice
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And restless legs syndrome is a condition that makes you desperate to move your legs around, especially when you're sitting quietly or trying to get to sleep.
Neil … get to sleep…
Alice Neil! Wake up!
Neil Oh, hello Alice! Sorry.
Alice Hello! Can we hear today's words again, please?
Neil OK, yeah: sleep like a log snoring caffeine insomnia hunter-gatherers soundly irregular cognitive behavioural therapy
Alice Well, that just about brings us to the end of this edition of 6 Minute English. We hope you've enjoyed this programme. Please do join us again soon.
Both Bye.
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Vocabulary
sleep like a log sleep very heavily and well
snoring breathing in a noisy way through your mouth or nose while you're asleep
caffeine a chemical found in coffee and tea that makes you feel more awake.
insomnia having difficulty falling asleep or staying asleep
hunter-gatherers people who live by hunting animals and gathering plants
soundly well or deeply
irregular (in this context) not spaced out evenly
cognitive behavioural therapy a treatment for mental health problems that tries to change the way you think
